Sling-pulley.



'1. M. BOYD.

Sums mm.-

-AFPL|CATION FILED APR- 4| 1910- 1 Patented July 11, 1916. v

[N ENTORQ JOHN M. BOYD, 0F FOND DU LAC, WISCONSIN;

SLINGr-IPULLEY.

Specification of Letters Patent. Patented uly 11, 1916,

Application filed April 4, 1910. Serial No. 553,392.

T 0 all whom it may concern.

Be it known that I, JOHN M. BOYD, a citizen of the United States, and resident'of Fond du Lac, in the county of Fond du Lac and State of Wisconsin, have invented certain new and useful Improvements in Sling- Pulleys, of which the following is a specification.

The object of my invention is to provide a set of right angle pulleys, or pulley blocks, adapted for use with a double hitch or tackle, for use with an elevator and carrier, etc., and means whereby the same may be adapted for use with a triple hitch, thereby giving more power to raiseheavy loads, especially'when used with slings, a sling carrier, etc., for handling extra heavy loads of various kinds, and it consists in the draft rope, means for supporting the pulleys and engaging the locking mechanism of a carrier, means for coupling or looking the pulley blocks or frames together, etc., and in the novel construction, combination, and arrangement of the different parts, substantially as set forth in the following description, reference being had to the accompanying drawings, and pointed out in the claims.

In the accompanying drawings, in which similar letters of reference indicate corresponding parts, Figure 1 is a View of a set of right angle pulley blocks with my improvements, coupled together and threaded on the draft rope, as a set of right angle triple tackle blocks, for use with hay slings, two forks at once, etc., etc. Fig. 2 1s a view of the same from the opposite side, and Figs.

3, 4, 5, 6 and 7, are detail views of different parts, as hereinafter pointed out. I

In the accompanying drawings, a,-1s the block or frame carrying the single or large sheave or pulley (1. and ,b. is the double block or frame carrying the two smaller sheaves or pulleys b 6 arranged in the usual manner for right angle pulley blocks for use with double tackle, as will be under stood, in which case only the side ropes 1'. 'r'.

coming from the hay carrier are attached or threaded in as shown, the upper part or head H. of the double pulley frame brbeing adapted to trip the carrier, or other means being provided or attached for that purpose,

and the pulley frames being normally held together by the ropes after being elevated, without the necessity of any looking or coupling mechanism being used to hold them together, where the load is supported by a rope lock in the carrier, as ordinarily used in sling carriers. desired to use these pulleys with a carrier provided with a sheave frame hitch or lock to support the load, as with the ordinary or hay fork carriers, or with a triple hitch,

other means must be provided to couple or lock the two blocks orframes together. I therefore provide a hook or coupling, as d., which may be. formed on, or attached rigidly to the upper end of the single block or frame m, as in Figs. 1, 2 and 7, and adapted to hook over any suitable supporting means provided in the double block or frame, b., as the arbor or axle 12 ofthe two small sheaves or pul- If however it is,

leys b b asshown, or said hook or cou- I pling may be formed separately and in two parts al al as inFig. 4, and adapted to be clamped onto the upper end of said single frame by a couple of bolts, or other means,

as will be understood, when desired to use it.

This hook or coupling a. is provided witha fiat curved upper edge or face d adapted to strike against and pass under said support or arbor b as the pulleys come together in the usual manner when raising, and also with a rib, extension, or guide, J 2, on it opposite or back side, adapted to strike against a cross-piece 6 provided in the double.

frame 6., as said hook is forced up underneath and beyond said arbor, (an extension or horn n. Fig.2, being provided to stop it fromgoing too far,) thus raising said hook so it will catch over said arbor or support, and also providing a fulcrum to throw it up as the lower ends of the pulleys close together as the direction of their travel is changed from a slanting to a vertical one when raising, a suitable head or trip being provided, (as h. Fig. 5, B. Figs. 1 and 2, etc.)

at the upper end of the double frame, 01' suitable means on the rope, to trip the carrier, and by means of which the pulleys may besupported with their load in the usual man ner,as will be understood, said pulleys being unhooked or uncoupled by hand to reset after returning. V

Aside elevation of the'single or central pulley blocks is shown .in Fig. 7, showing the same in the position it occupies when sliding or floating flatwise over the hay or other material as the pulleys are being drawn together to compress the load before raising, also showing the hook or coupling d, extending well up above the upper side of the rest of the pulley frame and above the ropes, well above the hay, etc., with the extension or guide (Z extending downward and backward therefrom, at an angle in front of the pulley, to act as a guard to prevent hay, etc., getting caught or tangled therein, keeping said hay, etc;, clear of the ropes, and helping or guiding the pulley blocks to more readily float or slide over said hay, etc., as it travels forward, and to properly enter the double frame 6. and couple with its supporting means therein as they are drawn together, as described above, and shown in Figs. 1 and 2. If however it is desired to use a triple-tackle, a rope-hitch or coupling must also be provided to connect one end of the draft-rope with one of the main frames of the pulleys. I therefore provide the rope-hitch or rope-coupling 0., shown in detail in Fig. 3, and in Figs. 1 and 2 as attached to the end of the rope W. as when depending, from a hay carrier, and coupled or hooked around the aforesaid arbor 6 thus connecting one end of said rope with said double frame 5., as will be understood, (or it may be otherwise attached,) and said hooks c. c. at its lower end being preferably closed by small bolts 0 0 or pins, cotters, or other means whereby it may preferably be easily detached when desired. The upper end of said hitch or coupling is also preferably formed with a head or bumper B. adapted to operate the tripping mechanism of a: sling carrier, or if desired the upper end may be changed to allow a head or trip to be attached, constructed to operate with any particular make or style of carrier, (as in Figs. 5 and 6 for instance,) or to allow said heads or trips to be interchangeable, or different styles of heads or trips may be formed on or attached, as shown by dotted lines at 7L1. Fig. 3, so it can be used with different styles of carriers, or it may be cut off entirely above the rope holding or attaching part, as at the dotted or broken lines 00. 00. in Fig. 1, and suitable means attached to the rope to openate the carrier, as will be understood.

For use with an ordinary or fork carrier with double tackle and a sheave frame hitch, a head similar to h. Fig. 5 may be attached, the head or trip being preferably in the center, and it may be a round head, as h, in Fig. 5, a loop, as in if, in Fig. 6, or of any other form adapted to co-act with the mechanism ofthe carrier it is to be used with, and when intended to be used with triple tackle, this head should'be a trifle at one side of the center, as if, Fig. 6, (being formed rigidly on the coupling piece, or removably attached, as if, Fig. 3, at different places if desired, for double or triple hitch, etc.) and means for attaching the end of the rope should be provided at the opposite side, as at 7?, same figure, and means should also be provided to hold them in an upright position, as the hook is, adapted to hook under the upper part or head H. of the double pulley frame, especially when only double tackle is used and no rope end attached, as will be understood. Hooks e. e. are provided at the lower ends of the pulley frames for attaching slings or loads in the usual manner. w

The operation of the different parts, and of the device as a whole, being operated in the usual manner, will be readily understood from the foregoing, making further description unnecessary. It is evident however that other slight changes may also be made in the construction, combination, and arrangement of the different parts, without departing from the spirit of my invention; I therefore wish it distinctly understood that I explicitly reserve to myself all such modifications, combinations, and arrangements as properly come within the scope of my invention.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

1. A set of pulley blocks consisting of a. single block or frame and a double block or frame adapted to work together, said single block being provided with coupling means at its upper or forward end, extending up above and beyond the upper side of its frame, above the pulley and well above the ropes as it travels flatwise over its load, and adapted to enter theopposite frame and couple with a suitable support provided in the upper part of said double block or frame, substantially as and for the purposes set forth.

2. In a. set of pulley blocks,-the combination of a central block or frame provided with coupling means extending out sidewise above and beyond said frame at its upper forward end, above and at one side of the line of travel of the pulley and ropes, and a wider block or frame with its upper ends spread apart and provided with a suitable support between the same adapted to be engaged by said upwardly and outwardly extending coupling means, of said central block or frame, and to support the same, substantially as set forth.

3. A set of pulley blocks consisting of a central block or frame, and a wider block or frame carrying sheaves or guide pulleys at its sides, and provided with a rigid support fixed crosswise in its frame between said pulleys, and a backwardly-hooked sidewise extension at the upper end of said central frame, extending out and carrying its hook above and beyond the outside of the frame at the upper side of the pulley as it travels flatwise over its load, and adapted to enter said wider frame underneath and hook backward over said support,substantially as and for the purposes .set forth.

4. A set of pulley blocks formed with two separate frames carrying sheaves or pulleys, means provided at the upper and outer end of one side of one frame, above and at the side of the pulley and ropes, whereby it may be coupled with the other, and a guide rib or flange, as (2 extending downward and backward from said means above the ropes, and at an angle across the upper end of said frame, whereby said frame may be guided or floated above its load, and into proper position to couple with the other frame or block as said frames are drawn together, substantially as and for the purposes set forth.

5. In a set of pulley blocks adapted to couple together, the combination of a double frame as 7)., provided with a rigid crosspiece, guide, or brace, as b and a suitable coupling means provided at the upper outer side of the upper end of the opposite frame, above the ropes and the line of travel of said frame, having a rear extension forming a hook, and formed with a forwardly extending rib or flange, as 2 projecting out from its forward under-side, and at an angle downward and backward between the ropes and across the upper or forward end of said frame, and adapted to glide over the load and to engage with said cross-piece or brace as said frames aredrawn together, substantially as and for the purposes set forth.

6. In a set of pulley blocks, the combination of the double block or frame provided with two sheaves or pulleys, one being supported at each side of said frame on a common arbor or axle running across and being supported in said frame, and a central block.

or frame carrying a single sheave or pulley, and provided at its upper end with a hook adapted to catch over said arbor between its supports in said double frame, substantially.

as and for the purposes set forth. 7

7. In a set of pulley blocks or frames adapted to coact together, the combination with a suitable widerframe provided with an open central part with pulleys at the sides, and crosswise supporting means, of a narrower or centrally-working frame provided with a forwardly extending flange set at an angle vertically and crosswise of its upper or forward end, and provided with a rearwardly projecting hooked extension projecti'ng up at the upper end of said flange, at one side of said frame and above its line of travel as it travels forward fiatwise, and adapted to engage with said cross-wise supporting means provided in said wider frame, substantially as and for the purposes set forth.

8. In a set of pulley blocks adapted to couple together, the combination of the wider frame provided with a central open space with guide pulleys at the sides, the

arbor or fixed support, as"b the cross-piece" or coupling means, as cZ., extending out above one side of the narrower frame, and

above its line of travel, and provided with a rear extension forming a hook, adapted to pass under and hook backwardly, over said arbor or fixed support, and provided with a suitable guide rib or flange, as (ii, at its forward and under side, as it travels fiatwise over its load, extending down and back at an angle from its forward end, between the ropes and across the upper or forward end of said frame, and a side extension or stop projecting out above the upper side of said frame at the rear of the opening in said hooked extension, substantially as and for the purposes set forth.

9. In a set of pulley blocks or frames, in combination with a. suitable supporting means set cross-wise in the wider or double frame, a central pulley block or frame provided'with an extension at its upper end formed with a hook, as d., projecting out at one side of said frame and provided with a wide flat curved point or guide portion, as (Z adapted to strike against and pass un der said cross-wise supporting means as the said pulley frames are drawn together, and a guide rib or extension, as 6Z3 formed on the back of said hooked extension and ex tending outward and adapted to engage with a cross-brace. or guide, as 12 in the double frame to throw the hook of said extension upward and outward into engagement with said cross-wise supporting means as it passes the same and the lower parts of said frames are drawn together, substantially as set forth.

i 10; In combination with a set of pulley blocks or frames, one of which is adapted to engage centrally with the other as they are drawn together, a suitable extension or head formedin two parts with suitable guiding and engaging extensions, and means whereby the' same may be removably attached to the upper end of the said centrally engaging frame, whereby said frames may be adapted clamped on the upper end of the single sheave frame, substantially as and for the purposes set forth. y

Y 12. In a set of pulley blocks, in combination with the cr0ss-arbor or bearing between the guide pulleys in the wider frame, the hooked extension set at an angle vertically and cross-wise of the upper end of the narrower or centrally-working frame, with said hook projecting out at one side and adapted to pass under said arbor or bearing and hook over the same as said pulleys are drawn together, and a suitable stop, as -n., to engage with said cross-arbor or bearing after said hook has passed the same, substantially as and for the purposes set forth.

13. In a set of pulley blocks consisting of a central block or frame and a wider or double block or frame provided with suitable sheaves or pulleys and adapted to coact together, an additional and removable upper coupling means formed with lower extensions adapted to be detachably connected with suitable supporting means at or near the wider part of said double block or frame, and a more central upper part or extension adapted to connect with supporting means above, substantially as set forth.

let. In a set of pulley blocks. adapted to couple together, in combination with the double frame provided with a suitable crosswise arbor or hearing at or near its widest part, a suitable removable upper coupling or support adapted to couple with or be removably attached to said arbor or hearing to support said frame from supporting means above, substantially as and for the purposes set forth.

15. In a set of pulley blocks adapted to couple together, the combination of the double frame provided with an arbor or suitable bearing running cross-wise thereof between the side pulleys, coupling means on the opposite or single block or frame whereby said frames may be coupled together, and supporting means adapted to be removably attached to said arbor or bearing at or near each end to support said pulley blocks from amore central support above, substantially as and for the purposes set forth.

16. In a set of pulley blocks, a double block or frame provided with a cross-wise support therein, and a single block or frame provided with an extension adapted to couple with said support, in combination with additional coupling means adapted to couple with said support in said frame astride said extension and connect it with supporting means from above, substantially as and for the purposes set forth.

17 The combination of the double frame provided with an arbor or hearing running cross-wise thereof, the single frame provided with a hooked extension or head adapted to hook over said arbor or bearing and suitable coupling means provided with hooks at its lower end adapted to hook under said arbor or bearing at each side of said hooked extension to provide a support from above, substantially as and for the purposes set forth.

18. In a set of pulley blocks or frames, the

combination of the wider frame provided with the cross-brace or guide, as b and cross-arbor, as 5 between its side pulleys, and the narrower or central frame provided with the hooked upper extension formed with a side hook, as d, provided with a curved upper face or guide portion, as (Z and a rear extension or guide rib, as (F, adapted to co-act together, and a detachable supporting means provided with lower extensions or coupling means, as c, 0, adapted to couple underneath said arbor, as b at each side of said hook, as (Z, to provide an additional support from above, substantially as and for the purposes set forth.

19. In a. set of pulley blocks consisting of a central block or frame, and a wider 01' double block or frame provided with guide pulleys at each side, said blocks or frames being adapted to co-act together, a ropecoupling formed with depending sides or extensions preferably connected by a crosspiece near their lower ends, and adapted to form a jointed connection between the end of the hoisting rope and the aforesaid double block or frame, substantially as and for the purposes set forth.

20. The combination of the double block or frame provided with a cross-wise arbor or support between the sides'thereof, a central block or frame provided with a hooked extension at its upper end adapted to hook over said arbor or support, and a detachable rope hitch orcoupling, as (3., provided with means for attaching the rope at or near its upper end, and with lower hooked ends, as 0. 0., adapted to hook underneath said crosswise arbor or support at each side of said hooked extension, substantially as and for the purposes set forth.

21. In combination with a set of pulley blocks adapted to co-act together, and a hoisting rope, for the same, a rope hitch or coupling, as C., provided with a suitable opening or means at or near its upper end whereby the rope may be attached, and formed with depending sides and lower hooked extensions, as c. 0., provided with suitable bolts or closing means, as 0 0 substantially as set forth.

22. The combination of the pulley blocks adapted to work with an elevator and carrier or other supporting means, the hoisting rope for the same, and a rope hitch or coupling provided with means whereby said rope may be attached, depending sides formed with hooked ends, as 0. 0., and suit able means provided at its upper end to engage the tripping mechanism of a carrier or supporting means, substantially as and for the purposes set forth.

23. The combination of the pulley blocks adapted to co-act and couple together, the hoisting rope adapted to connect the same with an elevator and carrier or other supporting means, and the removable rope hitch or coupling, as C.,adapted to connect the end of said hoisting rope with the double pulley frame a little at one side of centrally with the same, and provided at its upper end with means to engage the tripping mechanism of a carrier or other supporting means at one side of said rope connection, substantially as and for the purposes set forth.

24. The combination of the pulley blocks adapted to co-act together, the hoisting rope threaded through the same and adapted to draw them together and connect them with elevating means above, a removable rope hitch or coupling, as 0., adapted to be attached to said hoisting rope, and connected at its lower end to a cross-arbor or support provided in the wider frame or block, and a centrally ribbed guide piece or extension set at an angle vertically and cross-wise of the upper end of the narrower block or frame,

and provided witha hooked extension projecting out at one side of said block or frame and adapted to engage with said cross-arbor or support between the lower ends of said rope hitch or coupling to couple the blocks together, substantially as and for the purposes set forth.

25. In a set of pulley blocks, in combination with the hoisting rope and the wider block provided with a cross-arbor, as 6 the rope hitch or coupling, as 0., provided with lower hooked ends, as 0. 0., spread apart and adapted to hook underneath said arbor to couple the draft rope thereto, a cross-brace or guide, as 71 set cross-wise in the wider frame below said arbor, a guide rib or extension, as (Z 2, set at an angle vertically and cross-wise of the upper end of the narrower or centrally-working block or frame, and adapted to engage with said cross-brace or guide, as 12 as the blocks are drawn together, to force the side hook of said hooked extension, as d., to hook underneath and over said arbor, and a suitable stop, as m, projecting out at one side of said block or frame below said hook and adapted to engage said arbor after hook has passed underneath the same and arrest its travel for- JOHN BOYD.

Witnesses:

R. H. CROSBY, GEORGE MURRAY.

Copies of this patent may be obtained for five cents each, by addressing'the Commissioner of Patents,

Washington, D. G. 

